Finn & The Swirly Spin Slot

Finn & The Swirly Spin Slot
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Published Date · March 1, 2021 · Last Updated · Feb. 27, 2024
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Finn & The Swirly Spin Slot Review

Finn & The Swirly Spin Slot Overview

There are many iconic characters within the ever-expanding slot-o-sphere, but few, if any, have achieved such cult status as NetEnt’s flute-playing Leprechaun. Meet Finn and his Swirly Spin. Immediately standing out from the crowd upon its 2017 debut, this Irish-themed extravaganza proved to be an instant classic and continues to capture the imagination of slot players far and wide. From the distinctive spiralling grid to the four Finn-triggered modifiers and on to a quartet of unlockable Free Spins Bonuses set within the clouds, the game provides a mesmerising gaming experience. Grab a little of that Irish luck, and you may be playing a happy tune to celebrate an 840x max win.

Finn & The Swirly Spin Slot Details


3 or more









840 x

Software Provider




Design and Layout

Scatter Symbols Slots, 5 Reel Slots, Wild Symbol


Free Spins, Bonus Round

Well, NetEnt, it’s fair to say you smashed it out of the park with this one. A breath of fresh air at the time of its initial release, the Swirl system remains an entrancing, anticipation-building masterstroke. The game is so good you likely won’t need much encouragement to stick around for more, but the brilliant unlocking free spins system cements the replayability. All of that, and the RTP stands above most others. But for the underwhelming max win, this would be perfect. As it is, Finn will have to make do with being “almost” perfect - but we imagine he will be happy with that!


Fun Theme

Four Free Spins features

Modifier Features

Innovative Swirly Spin System


Low Max Win

Slightly Complicated Gameplay

How To Play Finn & The Swirly Spin Slot

finn and the swirly spin base
Base game
finn and the swirly spin winning combination
Winning combination
Min Bet
Max Bet
Max Win (x stake)

Finn and the Swirly Spin Basic Rules

  • The Gaelic action unfolds on a 5x5 layout
  • Rather than arriving on reels, all symbols swirl into view - beginning in the bottom left corner and spiralling inwards until all 25 positions are full
  • Each spin costs ten coins, with coin values ranging from 1p to £10
  • Once the Swirly Spin is complete, horizontal or vertical lines of three or more matching symbols will award a payout

Finn & The Swirly Spin Slot Paytable & Symbols

Here's a guide to all the paying symbols in Finn and the Swirly Spin:

3 Symbols
4 Symbols
5 Symbols
finn swirly spin spade
finn swirly spin heart
finn swirly spin clover
finn swirly spin horseshoe
finn swirly spin acorn
finn swirly spin diamond

Finn & The Swirly Spin Slot Features

Avalanche Wins

Following any win, all winning symbols disappear in a satisfying explosion. The remaining symbols then swirl clockwise towards the centre of the grid, with new symbols moving in from the bottom left until the grid is complete. This process repeats for every winning combination – creating the possibility of rewarding chain reaction wins

Exploding Star Wilds

Star Wilds will not appear on an initial spin (unless triggered by the Starfall modifier). Instead, Star Wilds are a product of winning combinations.

Each winning line which does not initially feature a Wild will leave one Star Wild behind when it explodes.

The fun really starts if these Star Wilds feature in a subsequent win triggered by an Avalanche. Whenever this occurs, the Star Wild explodes to destroy all horizontally and vertically connected symbols. In this game, that is a most welcome feature, as we will see when discussing how the feature round triggers.

Random Modifiers

For the most part, Finn sits serenely to the left of the grid, playing a jolly ditty on his flute. However, our ginger bearded hero will occasionally spring into life, sprinkling a little magic dust onto the reels to trigger one of the following four modifiers:

  • Starfall Wilds: Adds two or more Star Wilds to the reels. If no wins result, additional Star Wilds will land until a winning line does appear.
  • Dragon Destroy: A fire-breathing dragon blasts a selection of symbols from the reels. The ensuing avalanche is guaranteed to create a win. This boost may only activate if the initial Swirly Spin fails to produce a win. 
  • Irish Luck: Adds a winning line of matching symbols to the grid. This boost may only activate if the initial Swirly Spin fails to produce a win. 
  • Magic Transform: All Spades and Hearts transform into a higher value symbol. Spades and Hearts may become different high-value symbols or transform into the same symbol.

Finn & The Swirly Spin Slot Bonus Features

finn and the swirly spin free spins unlocked
Selection of bonus features available
finn and the swirly spin star bar free spins
Star Bar Bonus unlocked
finn and the swirly spin free spins bonus
Star Bar Bonus

Free Spins Bonus

At the start of each Swirly Spin, the bottom left corner of the grid contains a gleaming Golden Key, whilst the central grid position contains a Keyhole. No prizes for guessing where this is going. Your task is to move the Key around the grid and all the way to the central position courtesy of a sequence of wins, Avalanche Wins, and Wild Explosions.

Each time you trigger the bonus round, the triggering Key moves into the Key Meter at the right of the grid. The number of keys in your Meter determines how many of the Four Free Spins Bonuses are available for you to select:

  • Star Bar Round – Keys Required = one: Awards seven free spins with the Starfall Feature active on every spin.
  • Lava Lair Round– Keys Required = four: Awards three free spins with the Dragon Destroy Feature active on every spin. This round also features a Sticky Wild, which begins in the usual Key position. This Wild will not explode in the same way as Star Wilds but remains in play throughout the round.
  • Lucky Mug Round– Keys Required = nine: Awards four free spins with the Irish Luck Feature active on every spin.
  • Golden Pot Round– Keys Required = 16: Awards two free spins with the Magic Transform Feature active on each spin
Our Verdict NetEnt have many excellent creations under their belt but few come so close to perfection as this design. The swirling triggering system brings excitement to every winning sequence, as that lovely key tiptoes and lurches towards its destination, whilst the unlockable additional rounds lend significant replay value.

Play Finn & The Swirly Spin Demo for Free

Take the opportunity to try out the Finn and the Swirly Spin slot demo for free first without staking real money. Online slot demos are the best possible way to prepare for real-money gaming, as you get to learn exactly how a game works before committing real cash. Use the free play demo as a practice run before you try your luck at an online casino.

Finn & The Swirly Spin Slot RTP & Volatility

Variable RTP

The fixed Return to Player (RTP) percentage of 96.62% leaves the industry average RTP of 96% trailing in its wake.

Finn seems like a chilled-out chap and does his bit to ensure we all remain calm in this low medium volatility release. Games of this rating provide regular low to mid-level wins and the occasional more impressive payout.

Our Verdict An RTP of 96.62% represents excellent value for money. Top marks to NetEnt for being this generous with one of their flagship releases. With all those blue skies, greenery, and charming fictional imps, the theme is as light as they come - making the gentle gameplay a perfect fit.

Finn & The Swirly Spin Slot Graphics & Audio


Set amidst the rolling Irish hills below a beautiful blue sky, Finn resides in a most picturesque corner of slot land. A glorious rainbow lights up the mountainous backdrop, toadstools pepper the shrubbery, and fluffy white clouds drift on by. The stone-carved game grid is more imposing, whilst the starkly contrasting colours of the low and high pays help draw the eye to where the main action is. All wins are met with shuddering, explosive animations, adding further to the visual experience - and not forgetting Finn and his endearingly enthusiastic magic dust blowing. Wonderful! 

finn and the swirly spin base game
Base game spins
finn and the swirly spin dragon destroy
Dragon Destroy feature in action
finn and the swirly spin free spins
Free spins in action
finn and the swirly spin free spin winnings
Free spin winnings


Each spin begins with Finn gently entertaining your earbuds with a soothing Irish tune backed by light organs and birdsong. From there on, the soundtrack keeps pace with the action on the grid – the pipes becoming more energetic and epic drums entering the mix as the Key moves around the grid. Not about to let the game pass by without a little commentary, Finn chirps in with his Irish twang to issue words of encouragement and congratulations.

Our Verdict Only those with a heart of stone would fail to be charmed by this lovely-looking slot. There are many interpretations of the Irish theme, but few games have hit these heights. Throw in a soothing yet dynamic soundtrack, and you have a game which oozes cutesy class.

Finn & The Swirly Spin Slot on Mobile

NetEnt understands that modern gamblers need to access their favourite online slots when they are on the move. As such, they have optimised Finn and the Swirly Spin to ensure that it works on a range of mobile devices, including those running on both Android and iOS operating systems.

Finn & The Swirly Spin

Finn & The Swirly Spin FAQs

Who made Finn and the Swirly Spin slot?

The slot was developed by NetEnt.

Can I play Finn and the Swirly Spin slot on mobile?

Yes - the slot is fully compatible with all iOS and Android devices.

Can I play Finn and the Swirly Spin slot for free?

Yes - you can play the slot demo for free on CasinoRange before staking real money at an online casino.

How much can I win playing Finn and the Swirly Spin slot?

The slot pays out up to 840x your stake.


Paul Harrison

Slot Review


Nosa Omoigui

Content Editor

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